Bottle-cap manufacture.



Patanted Mar. 9, 1915.

J ll 4 1 2 SHEETS-SHEET 1.

' 1 l l a I J. G. FORRESTER. BOTTLE CAP MANUFACTURE.

APPLICATION FILED MAY 23, 1913v 1,131,354. Patented Mar. 9, 19L

2 SHEETS-SHEET 2.

gill) e; a. Farrefler ATTORNY:

I IN ITED STA...

JAMES C. FORRESTER, OF NEW YORK, N. Y.

BOTTLE =AP MANUFACTURE.

Specification of Letters Patent.

Patented Mar. 9, 1915.

Original application flied January 23, 1913, Seria 1%. 748.749. Divided and this application mm Kay,

To all nib/rm it may concern Be it known that 1. JAMES C. Fcnnrs'mn, a citizen of the United States of America, and residing at New York. in the county of New York and State (if ,Ncw York, hme iii-- vented new and useful Imprm'cmcnrs in BntflerCnp Manufacture, 03" which the f01- inn ing is a spccificntinn.

B'Iy invention relate; pmticuizirij; to a process fcr :isscmnhng the difi'crcnt. gmrtc of r1 hotiic cap for instance, the metalli member 0! tin as it is usimliy called, the: sticking mat iii ii nseiizi ly prcpmcd paper, and the closi g material, usnniiy r'irk, the present application living a di ision 0f my application #743 749 filed. January 23rd, 1913.

The sprain]. object is to HSSQXUi'JiB the tin, paper and. cork pcrmzinrnily mic machine, rapid sccnrcly and cfiicicntiy.

Br? ii"; thc invention 6; mm:

ares feeding kind heating the tins, inserting the paper, either bcforc. during or aftcr heating, hut prefcmhiy hcfnrc hearing. driving a cork intn :1 tin, sw' izccming' the g tngcthcr t0 insure cnrmv-ictc Stiiliiiflg: {ism than cjecting the finishcii (up.

In $116: inrm of mcchzmiam her-c ilhisstriiicfl for czirrying msi' the hivc'iinn. 2hr: tins: are fcil from ii m nd y rctnmi! diui cr-tn u tl'U'lE- fer hcit, which riciircrs thcm 911C sivciy to a feeding slide. Tim n wed. pzu'vcr or oihcr stir-king mricriai is: i i in thc tins in nnv cs mcnic: m-mmz: Tin. chic is hcsiizxl mi ii in hwvi. FM tins f??? thcy r fed along i The h 'Qi. {ins f'iren thc prcmrwi The f cfir mlwr iimifv chasm mu'crnii nrc rd inhfrn'iir tcntly into position .ihm-c Hm tinf-t and are tirii'rn aiwwmvnrd ngaiinFt 'ihe trick haw-r LHHQ. Tim flick 31mg pipers: Inn i Dir-cod in. {i r hand or 2mm mniicziii in any wiziiz iminncr {it my time jirinr in the tins fimi Hr fir arc fid under the wrks. but ivfcmhi vs-inn? hem? inn tin? tins. After .he drives a cork hv :i. spring! prcwnrc int. L :i mcchnnicai prcssi'zrc by mcnm 0? ii lever is prefcrzihiy zmpiicd tn {hr "ihngcr to squeeze the cnrh in thc tin. Prinhi y :1 number of pinngcw are carried 3: 9. mrrct which r0- ates intcrmiflcntiy 50 that a iin is fed anti :1 cox-i: zisficmidw i and smirk at each strokc Serial Na. 769,632.

of the successively rotating turret piungers. As the turret rotates the plungcrs are succr-ssivclv lifted by a cam and the coinpieted (RPS dircctcd frani the turret to a belt which cnrrics them to a suitable inspecting tahic.

Figmc 1. is a plan view of the principal parts of z: machine for carrying out the improved process of my imcntinn. Fig. 2. is a vertical longitudinal section of the same through the feeding and heating slide. Fig. 3, a front view if the squeezing device, showing the plunger lifting mm. Fig. '1. is a cross sectional View of the tin feeding and hcniins chute.

In the machine illustratcd, the tins m sheik arc insncrtcd on a suiizihie table (not shown) and fed (min a suitable rotating dial 53. From this thcv are dircctcii by a. flange 6 an to n. hcit I which deli ers thcm on in the reciprncziting feeding shi'ie 8. The arm 9 which secured tn the outer and 0f the feeding slide 8 has a roller 10 pressed against the cam 11 for instance. by a. spring 12. The cam .1 is on the main drive hnft i5? so that as this shaft rotates. the arm :inii iii-e siide 8 are rcr'in cvcntcd. The slide 8 has a shoulder for engaging: the succcssivc iins to feed thcm forwardly. A pair of spring weaned phmgcrs 14. 14 serve to Prevent the tins fmm moving backward with the slide on which they rest. As the slide is mcved forward the snringmr scd "Rangers 15 are iiiicrgms' cd iimind thc mid tin and thus hold and prawn: it going hack with the slide. As thc Midi? moves hack. the cud tin is thus 119M 31's.. firm? on in {he si nncrt 16 in front of fin: rcicinp; 'iiirrct. This tnrrrt has; a moving (nhic mcrn'm'n" 17 n izmhni tn rea'cive the Iina whi h are fcfi fnrnnidiv inicrmib lcnflv min ihc SUEJPUF? 1 3 as triitiij HRH-8S forward.

The orks: are fii'lpp iifli in a chili-e, 2 and fed f'nrwnrdlv ii'irc mittcntiy from the hattnm bv :i feeding slide 21. This slide 21 is (mcratvd bV an arm 2:? pivoted a5 23 and which has a rnHcr 24 opcrating in a groove of the ram 95. This cam is on the shaft 12 and swings; ihc arm 22 backwnrl and forward once at each rotation of the shaft. The cork feeding slide and the tin feeding slide are thus onerntcd synchronously. Each cork is fcti into the mmcr end of the taper Eng passage 36 immediatelv above the tins. Ayaper dick having a sticking campositinn has been inserted in each tin at a convenient time prior to insertion of the cork.

The tins are heated in the present instance in the feeding chute on the slide 8, the heating being accomplished by means of a burner 28. The bottom of the slide may have a series of openings such as 29 for the heat to more directly pass through to the tins. The chute may also have lateral flanges 30, 30 to confine the heat. The temperature may be regulated as required by the particular necessities of the materials employed and the speed of operation. The hot tin softens the prepared paper so that it is ready to stick the cork the instant the cork is inserted.

The turret is rotated on the shaft in-- termittentlv by the action of a pawl 33 connected to the arm 34 of the cam operated lever piv t d at 23. so that the turret is rotated step by step at each feeding stroke of the tins and orks. The turret carries a series of plun ers 35 which are guided at their upper ends in a plate 36 and at their lower ends in a plate 37 disposed inst. above the plate 38 which has the ta ering cork passales 26. The lower end of each plunger is suitably shaped to apply a essure on the cork in the proper manner. Each plunger is pressed downward hv a sprint- 39 which is ho sed within the up er end of the plunger and the piate 36. Fach plunger carries, a. roller 40 on a stud 41 which stud is vertically guided in the slot 42 so as to prevent the plunger from rotating. A cam 43 is secured at one si e of the turret for engaging these rollers. The instant the tin and cork are fed into posit on in the tur et a pluner is h d above them bv the roller 40 restint! on the tip of the cam 43. The turret is prevented from turnin backward by another one of the rolle s 40' resting in a notch 44 in the cam 43. The turret is stopped in proper position hv the yielding stop 45 which inter e ts the roller 40. As the cork is inserted in the turret. the stop 45 is raised and as the turret is rotated clockwise. the roller 40 drops off to the left from the tip of the cam 43 and striking the cork beneath it drives it into the tin on the table 17 strikinz a sharp blow. The tapered guide 26 contracts the edge of the cork so that it is uniformly fed into the tin. The levcr 46. pivoted at 47 is connected by a pin and slot engagement 48 with a pro jection 4-? from the arm 22 so that as the arm oscillates. the lever 46 is rocked. The lever 46 carries the vieldina stop 45. previously referred to. and also h s a cam face 50 below its right hand end. The arrangement and proportions of the parts are such that when the roller 40 drops down from the tip of the cam 43. the lever 46 is tilted and rocks its right hand end and cam 50 down onto the roller 40 so as to force the roller and plunger 39 downward and positively squeeze the cork into the tin. This dis tributes the sealing, and sticking material so that the parts are uniformly united. As the turret rotates, the rollers on the plungers successively engage and are lifted by the right hand end 5'2 of the cam 43. This raises the plunger-s and releases the finished caps which are. directed outwardly from the turret by the finger 54. They thereupon fall tllTOllgll the opening fifi'onto a belt 56 which convevs them out on to an inspecting table, not shown. Bv this method of assembling the caps may he made rapidly and the parts are securely united. An advantage derived from the invention is that bv reason of the particular sequence of operations set out the cork is not injuriously affected by heating because the heat necessary to soften tne sticking material has been applied before the cork is inserted in the tin. In other words. the cork is only inserted a fter the rodhesive has been softened and the tin is there fore all ready to receive it. This also per mits an gases given oil in the heating of the sticking material to escape before the cork is seated in the tin. The cork being unheated sticks more quickly to the prepared paper.

1. The process of manufacturing bottle caps. which consists in first heating a tin containing only the adhesive binding material to thereby soften said adhesive material. then driving a cork into firm en- ;raecment with the said previouslv softened adhesive material and then momcntarilv increasing the pressure between the cork and the tin.

2. The improvement in the art of formin;' bottle caps which includes. placing adhcsive disks in the tins. then moving the tins with the adhesive disks therein successivclv through a heating zone ..nd gradually softening the adhesive. removing; the tins one by one from the heating zone. then inserting by pressure a scaling disk into each tin after it leaves the heating zone and maintaining such pressure on the sealing disks while the adhesive is setting.

3. The improved art of as embling the parts of a device of the character described which includes forcibly inserting a cork into a tin with interposed adhesive material so as to cause adhesion between the cork and the tin. thcn momentarily exerting a. pressure on the cork in excess of the force employ d in inserting said cork so as to for e the adhesive material into the pores of the cork. then releasing said exce s of pressure so as to relieve excessive ten ion between the cork and the tin and afterard continuing pressure on the cork suf' tiricnt to hcld the parts tc cthcr while the adhes-iw material setting.

4. The improved art of assembling the parts of a device of the character described which includes heating a tin for softening adhesive material therein, inserting a cork into the tin so as to cause adhesion between the cork and the tin, then momentarily exerting a pressure on the cork in excess of the force employed in inserting said cork so as to force the adhesive material into the pores of the cork, then releasing said excess of pressure so as to relieve excessive tension between the cork and the tin and afterward continuing pressure on the corksufiicient to hold the parts together while the adhesive material is setting. 4

5. The process of manufacturing bottle caps which consists in heating a tin, then forcing a cooler cork into the previously heated tin with interposed tacky adhesive material between the tin and cork with pressure sufiicient to suddenly compress the cork against the tacky adhesive material, and then reducing the pressure to allow the cork to expand somewhat and draw 333116 of the adhesive into its surface pores and holding the cork in the tin under said reduced pressure while the adhesive is setting whereby tenslonal stresses in the cork and setting adhesive are relieved during the setting of the adhesive and before the adhesive has finally set.

6. The im roved art of assembling the parts of a device of the character described which includes applying a heavy squeezing pressure to a cork within a tin with interposed adhesive material to thereby force the adhesive material into the pores of the cork, then reducing the pressure to relieve excessive tension between the cork and tin 40 JAMES e". FORBESTER.

Witnesses:

R. S. ALLYN, PHILIP S. IVICLEAN. 

